Fortinet FortiOS < 5.2 / 5.4.x < 5.4.6 / 5.6.x < 5.6.1 SSL / TLS Renegotiation Handshakes MitM Plaintext Data Injection (FG-IR-17-137)

Medium Nessus Plugin ID 104656

Synopsis

The remote host is affected by a MITM vulnerability.

Description

The version of Fortinet FortiOS running on the remote device is 5.2.x or prior, 5.4.x prior to 5.4.6, or 5.6.x prior to 5.6.1. It is, therefore, affected by a MITM vulnerability in SSL Deep-Inspection due to insecure TLS renegotiation.

Solution

Upgrade to Fortinet FortiOS version 5.4.6 / 5.6.1 or later.

See Also

http://www.fortiguard.com/psirt/FG-IR-17-137

Plugin Details

Severity: Medium

ID: 104656

File Name: fortios_FG-IR-17-137.nasl

Version: $Revision: 1.2 $

Type: local

Family: Firewalls

Published: 2017/11/17

Modified: 2017/11/20

Dependencies: 73522

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSSv3

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fortinet:fortios

Required KB Items: Host/Fortigate/model, Host/Fortigate/version

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/11/03

Vulnerability Publication Date: 2017/11/03

Reference Information

CVE: CVE-2009-3555

BID: 36935

CWE: 310